Homeβ€Ί HVAC > Gaskets and Sealing Systemsβ€Ί Four Seasons 26804 A/C System O-Ring and Gasket Kit
Part #: 26804

Four Seasons 26804 A/C System O-Ring and Gasket Kit

AC System Seal Kit
βš™οΈ 93 vehicles fit this part
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βœ…OE Direct Replacement β€” Bolt-on fit, no modifications needed
πŸ“¦AC System Seal Kit
πŸš—Fitment: GMC, Buick, Chevrolet, Cadillac, Pontiac, Saturn, and Oldsmobile, Acadia, Acadia Limited, LaCrosse, Equinox, Lucerne, DTS, HHR, XLR, Uplander, Montana, Torrent, Terraza, Monte Carlo, Relay, Classic, and Silhouette
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Reliable A/C System Sealing for Select GM Vehicles

The Four Seasons AC System Seal Kit 26804 provides essential sealing components designed to maintain the integrity of your vehicle's air conditioning system. Engineered for compatibility with various Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, and Saturn models, this kit ensures a secure and leak-free A/C system.

  • Includes green rubber O-rings and black aluminum gaskets for durable sealing
  • Specifically designed as an O-ring and gasket kit for A/C system applications
  • Compatible with multiple GM makes and models including Acadia, Equinox, LaCrosse, and more
  • Part number 26804 ensures precise fit and function
  • Supports maintenance and repair of HVAC gaskets and sealing systems

About the Four Seasons AC System Seal Kit Line

The AC System Seal Kit line by Four Seasons focuses on providing comprehensive sealing solutions for automotive air conditioning systems. This product line includes carefully selected materials such as green rubber O-rings and black aluminum gaskets to withstand the demands of HVAC systems. The 26804 kit is part of this line, offering a reliable combination of components tailored for GM vehicles to help prevent refrigerant leaks and maintain system efficiency.

Product Details and Material Specifications

This A/C System O-Ring and Gasket Kit features green rubber O-rings known for their flexibility and resistance to refrigerants, paired with black aluminum gaskets that provide a strong, corrosion-resistant seal. The combination of these materials ensures a tight seal within the HVAC system, reducing the risk of leaks and system failures. The kit is designed to replace worn or damaged seals in the A/C system, restoring proper function and performance.

Compatible Vehicles and Applications

  • Buick models including LaCrosse and Lucerne
  • Cadillac models such as DTS and XLR
  • Chevrolet models including Equinox, HHR, Monte Carlo, and Captiva Sport
  • GMC models like Acadia, Terrain, and Sierra
  • Oldsmobile, Pontiac, Saturn, and other GM vehicles including Montana, Relay, Silhouette, Terraza, Torrent, and Uplander

Common Issues Addressed by This Seal Kit

  • Prevents refrigerant leaks caused by worn or damaged O-rings and gaskets
  • Eliminates A/C system pressure loss and improves cooling efficiency
  • Reduces the risk of contamination entering the HVAC system
  • Helps avoid costly compressor damage due to improper sealing
  • Restores proper sealing after A/C system repairs or component replacements

Installation Notes and Tips

When installing the Four Seasons AC System Seal Kit 26804, ensure all old seals and gaskets are completely removed and surfaces are clean. Lubricate the new green rubber O-rings with the appropriate refrigerant oil to prevent damage during assembly. Verify correct placement of black aluminum gaskets to maintain a secure seal. Follow vehicle-specific service manual instructions for torque specifications and assembly procedures to ensure optimal performance.

Quality Assurance and Warranty Information

Four Seasons provides this AC System Seal Kit 26804 with a focus on quality and durability. The materials used are selected to meet OEM standards for HVAC sealing components. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty against defects in material and workmanship. Refer to the product packaging or manufacturer documentation for complete warranty terms.

BrandFour Seasons
Part Number26804
PositionAC System Seal Kit
DescriptionO-Ring & Gasket A/C System Seal Kit
MaterialGreen Rubber O-Rings, Black Aluminum Gaskets
StyleO-Ring & Gasket Kit
TypeAC System Seal Kits

This part fits 93 vehicles. Search below:

YearMakeModelPositionNotes
2019GMCAcadiaN/AO-Ring and Gasket Seal Kit; AC System Seal Kit
2018GMCAcadiaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2017GMCAcadiaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2017GMCAcadia LimitedN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2016GMCAcadiaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2015ChevroletCaptiva SportN/AO-Ring and Gasket Seal Kit; AC System Seal Kit
2015GMCAcadiaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2014ChevroletCaptiva SportN/AO-Ring and Gasket Seal Kit; AC System Seal Kit
2014GMCAcadiaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2013BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2013ChevroletCaptiva SportN/AO-Ring and Gasket Seal Kit; AC System Seal Kit
2013GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2012BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2012ChevroletCaptiva SportN/AO-Ring and Gasket Seal Kit; AC System Seal Kit
2012ChevroletEquinoxN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2012GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2011BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2011BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2011CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2011ChevroletEquinoxN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2011ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2011GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2010BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2010BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2010CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2010ChevroletEquinoxN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2010ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2010GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2010GMCTerrainN/Aw/ H6 Compressor; AC System Seal Kit
2009BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009ChevroletEquinoxN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2009ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009ChevroletUplanderN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2009GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2009PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2009PontiacTorrentN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008ChevroletEquinoxN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2008ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008ChevroletUplanderN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2008PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2008PontiacTorrentN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007BuickTerrazaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007ChevroletEquinoxN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007ChevroletMonte CarloN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007ChevroletUplanderN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007GMCAcadiaN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2007PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007PontiacTorrentN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2007SaturnRelayN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006BuickLucerneN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006BuickTerrazaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006CadillacDTSN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006ChevroletEquinoxN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006ChevroletHHRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006ChevroletMonte CarloN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006ChevroletUplanderN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006PontiacTorrentN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2006SaturnRelayN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005BuickLaCrosseN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005BuickTerrazaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005ChevroletEquinoxN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005ChevroletUplanderN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2005SaturnRelayN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2004CadillacXLRN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2004ChevroletClassicN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2004OldsmobileSilhouetteN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2004PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2003OldsmobileSilhouetteN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2003PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2002OldsmobileSilhouetteN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2002PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2001OldsmobileSilhouetteN/AO-Ring and Gasket Seal Kit; w/ Rear AC; AC System Seal Kit
2001PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
2000PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit
1999PontiacMontanaN/APlease confirm compatibility prior to installation of A/C System O-Ring and Gasket Kit.; AC System Seal Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

11126804132132826804801828A26804MT2556RS2556

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.